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Diffstat (limited to 'src/libstddjb/openreadnclose.c')
-rw-r--r--src/libstddjb/openreadnclose.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/src/libstddjb/openreadnclose.c b/src/libstddjb/openreadnclose.c
new file mode 100644
index 0000000..b0cf5d0
--- /dev/null
+++ b/src/libstddjb/openreadnclose.c
@@ -0,0 +1,21 @@
+/* ISC license. */
+
+#include <errno.h>
+#include <skalibs/allreadwrite.h>
+#include <skalibs/djbunix.h>
+
+int openreadnclose (char const *file, char *s, unsigned int n)
+{
+ register int r ;
+ int fd = open_readb(file) ;
+ if (fd == -1) return -1 ;
+ r = allread(fd, s, n) ;
+ if (r == -1)
+ {
+ fd_close(fd) ;
+ return -1 ;
+ }
+ fd_close(fd) ;
+ if ((r > 0) && (r < (int)n)) errno = EPIPE ;
+ return r ;
+}